/Engine/Plugins/FX/Niagara/Source/NiagaraEditor/Public/NiagaraGraph.h
const [TMap](API\Runtime\Core\Containers\TMap)< [FNiagaraVariable](API\Plugins\Niagara\FNiagaraVariable), [FNiagaraGraphParameterReferenceCollection](API\Plugins\NiagaraEditor\FNiagaraGraphParameterReferenceC-) > & GetParameterReferenceMap() const